Materials

UHMWPE

Overview

Kormax UHMWPE [short for Ultra High Molecular Weight Polyethylene] has excellent chemical resistance, good fatigue and wear resistance. Specific gravity of polyethylene is less than 1, hence it floats in water and is easy to identify. Kormax UHMWPE has excellent impact resistance and can be used in low temperatures down to -80°C. Most grades are non-toxic and can be used in direct contact with food, and can be easily machined.

Common Applications

Chain guides
Chute liners
Dock fenders
Food processing machinery parts
High speed conveyors
Hopper liners
Packaging machinery parts
Star wheels
Under-chain wear strips

Key Features

Excellent wear resistance
Good chemical resistance
Excellent impact resistance at minus temperatures
Excellent value at a low cost

Material Profile

Profile
Size Range
Metric Size Range (mm)
Availability
Rod
See Size Range
25 to 250
NZ Only
Sheet
See Size Range
3 to 100
NZ Only
Diameter (mm)
Weight (Kg/MTR)
Colour 1
Colour 2
25
0.50
White
-
30
0.70
White
-
35
0.90
White
-
40
1.30
White
Black
45
1.60
White
-
50
2.00
White
Black
60
2.80
White
Black
70
3.70
White
Black
80
5.00
White
Black
90
6.30
White
Black
100
8.10
White
-
110
9.60
White
Black
120
11.20
White
-
130
13.40
White
Black
140
16.00
White
Black
150
18.60
White
-
160
19.76
White
Black
180
27.00
White
-
200
31.11
White
Black
230
43.00
White
Black
250
50.00
White
-
T (mm)
Weight (Kg/MTR)
Colour
*for black refer to UHMWPE Eco
3
2.85
White
-
4
3.80
White
-
5
4.75
White
-
6
5.70
White
-
8
7.60
White
-
10
9.50
White
-
12
11.40
White
-
15
14.25
White
-
20
19.00
White
-
25
23.75
White
-
30
28.50
White
-
35
33.25
White
-
40
38.00
White
-
50
47.50
White
-
60
57.00
White
-
70
66.50
White
-
80
76.00
White
-
100
95.00
White
-

Dimensional Tolerances

Rod
Diameter Tolerances
5 mm to 25 mm +0.1 mm to +1.1 mm
26 mm to 56 mm +0.2 mm to +1.3 mm
60 mm to 100 mm +0.4 mm to +2.2 mm
110 mm to 150 mm +0.6 mm to +4 mm
160 mm + +1.0 mm to +6 mm
Sheet
Thickness Tolerances
1 mm to 10 mm +0.2 mm to +1.0 mm
12 mm to 25 mm +0.3 mm to +1.1 mm
30 mm to 50 mm +0.5 mm to +1.2 mm
60 mm to 100 mm +0.1 mm to +1.6 mm

Mechanical Properties

Material Metric Values Imperial Values
Tensile Strength at Break 40 N/mm² 6000 psi
Yield Strength 20 N/mm² 3000 psi
Elongation at Yield 20% 20%
Hardness 38 MPa 38 MPa

Thermal Properties

Thermal Properties Temperature
Melting point 130-135°C
Maximum service temperature 80°C

Resources

Data Sheet

UHMWPE Data Sheet

PDF (123 KB)

https://www.kormax.com/wp-content/uploads/2022/11/Kormax-UHMWPE-Material-Data-Sheet-Updated-6_10.pdf

Polymer Properties Chart

PDF (100 KB)

Download Our Plastics Book Here

Complete range of Kormax Thermoplastic Polymers for New Zealand industries.

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Quality Management

Quality materials, delivered to standard.

Kormax is ISO certified for ISO 9001, ISO 14001, and ISO 45001.
All Kormax products come with batch certifications.

Related Products

HDPE

Kormax HDPE [technical name High Density Polyethylene] has excellent chemical resistance, low moisture absorption and good impact resistance. Kormax HDPE is able to be welded, heat formed and machined using metal and wood working equipment. It is priced lower compared to other plastic materials. Being a polyethylene material, it floats in water, can be used in cold temperatures and food processing equipment/materials handling applications.

UHMWPE ECO

Kormax UHMWPE Eco [short for Ultra-high Molecular Weight Polyethylene] has excellent chemical resistance, good fatigue, and excellent wear resistance. This material uses a portion of regrind from the premium grade in the production phase and thus minimizes what ends up in landfill. The specific gravity of polyethylene is less than 1; hence it floats in water and is easy to identify. Kormax UHMWPE Eco has great impact resistance, and can be used in temperatures as low as -80 °C. Most grades are non-toxic, however, UHMWPE Eco is not recommended for applications in direct contact with food but rather used for conveyors and other food processing machinery. Additionally, it is easily machinable.